JPH0326656U

JPH0326656U -

Info

Publication number: JPH0326656U
Application number: JP8759889U
Authority: JP
Priority date: 1989-07-26
Filing date: 1989-07-26
Publication date: 1991-03-18
Anticipated expiration: 2004-06-22
Also published as: JPH0623491Y2

Description

[Brief explanation of drawings]

第１図は、本考案に係る車体水平設置装置の構
成を示した概略図、第２図は、上記装置を搭載し
た作業車の斜視図、第３図は、上記装置のジヤツ
キの配置をしめした概略図、第４図は、上記装置
のレベリングバルブの構成を示した概略図、第５
ａ，５ｂ図および第６ａ，６ｂ図は、上記装置の
作動を示した概念図、第７図は、ジヤツキの構造
を示す斜視図である。２……車体、１１〜１４……ジヤツキシリンダ
、３１，３４……接地検出器、３２，３３……レ
ベリングバルブ。 Fig. 1 is a schematic diagram showing the configuration of the vehicle body horizontal installation device according to the present invention, Fig. 2 is a perspective view of a working vehicle equipped with the above device, and Fig. 3 shows the arrangement of the jacks of the above device. Figure 4 is a schematic diagram showing the structure of the leveling valve of the above device, Figure 5 is a schematic diagram showing the configuration of the leveling valve of the above device.
Figures a and 5b and figures 6a and 6b are conceptual diagrams showing the operation of the above device, and Figure 7 is a perspective view showing the structure of the jack. 2...Vehicle body, 11-14...Jax cylinder, 31, 34...Grounding detector, 32, 33...Leveling valve.

Claims

[Scope of Claim for Utility Model Registration] The vehicle body is installed horizontally using four jacks each having a jack cylinder arranged on the front, rear, left and right sides of the vehicle body and for raising and lowering a ground plate attached to the lower end. A grounding detector for the first jack, which is a vehicle horizontal equipment device, and is provided on a first jack and a fourth jack on one diagonal of the four jacks, and detects that the ground plate is grounded. and a grounding detector for a fourth jack; and a second jack that controls the supply and discharge of hydraulic oil to each of the jack cylinders of the second jack and the third jack located on the other diagonal so as to level the vehicle body. a leveling valve for the first jack and a leveling valve for the third jack; a solenoid valve for the first jack and a solenoid valve for the fourth jack that supply and discharge the hydraulic oil to each jack cylinder of the first jack and the fourth jack; a second and third jack solenoid valve that supplies and discharges the hydraulic oil to the second jack leveling valve and the third jack leveling valve, the first jack solenoid valve, the fourth jack solenoid valve, and a controller that controls the operation of second and third jack electromagnetic valves; the controller first controls the first jack on the side where the center of gravity of the vehicle body is located with respect to the other diagonal; After the grounding is detected by the grounding detector, the first jack solenoid valve is opened until it is further extended by a predetermined amount, and then,
The second and third jack solenoid valves are opened, and the hydraulic oil is supplied to the second jack leveling valve and the third jack leveling valve, and the first jack expands and contracts by the action of these leveling valves. The vehicle body is horizontally supported by the controlled second jack and third jack, and then the fourth jack solenoid valve is opened to cause the fourth jack to detect the grounding of the fourth jack. A device for horizontally installing a vehicle body, characterized in that the device is configured to extend until grounding is detected by a device.